TY - GEN
T1 - Diffusers in public ordinary rooms
AU - Arvidsson, Emma
AU - Bard, Delphine
AU - Nilsson, Erling
AU - Karlsson, Ola
PY - 2019/9/30
Y1 - 2019/9/30
N2 - Traditionally, the room acoustic properties in an ordinary public room are defined by only one parameter, the reverberation time. However, research has showed that additional room acoustic parameters as sound strength and speech clarity are necessary to consider in order to achieve good acoustic conditions. In a room with acoustical ceiling treatment the effects of furniture and interiors on the room acoustic parameters are significant. In addition, by using diffusers with directional properties it is possible to individually control the room acoustic parameters. Room acoustical measurements have been carried out in a reverberation chamber with suspended absorbing ceiling and directional diffusing objects. The effect of different diffuser configurations has been examined regarding reverberation time, speech clarity and sound strength. The evaluation shows that the orientation and the amount of the diffusing elements have a significant influence on the room acoustic parameters and can be used to fine-tune the acoustical conditions in public ordinary rooms with an existing acoustic ceiling treatment. This paper presents a study showing how diffusers can be used to contribute to an improved sound environment in public ordinary rooms with an acoustic ceiling.
AB - Traditionally, the room acoustic properties in an ordinary public room are defined by only one parameter, the reverberation time. However, research has showed that additional room acoustic parameters as sound strength and speech clarity are necessary to consider in order to achieve good acoustic conditions. In a room with acoustical ceiling treatment the effects of furniture and interiors on the room acoustic parameters are significant. In addition, by using diffusers with directional properties it is possible to individually control the room acoustic parameters. Room acoustical measurements have been carried out in a reverberation chamber with suspended absorbing ceiling and directional diffusing objects. The effect of different diffuser configurations has been examined regarding reverberation time, speech clarity and sound strength. The evaluation shows that the orientation and the amount of the diffusing elements have a significant influence on the room acoustic parameters and can be used to fine-tune the acoustical conditions in public ordinary rooms with an existing acoustic ceiling treatment. This paper presents a study showing how diffusers can be used to contribute to an improved sound environment in public ordinary rooms with an acoustic ceiling.
KW - Diffusers
KW - Reverberation time
KW - Speech clarity
UR - http://www.scopus.com/inward/record.url?scp=85077715259&partnerID=8YFLogxK
M3 - Paper in conference proceeding
T3 - INTER-NOISE and NOISE-CON Congress and Conference Proceedings
SP - 5453
EP - 5461
BT - InterNoise 19, Madrid, Spain
A2 - Calvo-Manzano, Antonio
A2 - Delgado, Ana
A2 - Perez-Lopez, Antonio
A2 - Santiago, Jose Salvador
PB - Institute of Noise Control Engineering
T2 - 48th International Congress and Exhibition on Noise Control Engineering, INTER-NOISE 2019 MADRID
Y2 - 16 June 2019 through 19 June 2019
ER -